[Labyrinthos]

Students should be free to not take that class and fulfill that requirement, if it is a requirement, in other ways.

There lies the problem. I agree that free speech is the way to go. But state university classrooms are often "captive audiences" filled with students who are required to take the class to graduate, and risk a GPA killing grade if they dare to challenge the professor's free speech with their own free speech.

[xzins]

Agree.
A captive us not free. Freedom goes both directions.